Kai is one of the 30 Master Experts of Stellantis. He is responsible for Regulation Certification and Standards. Since its creation in 2016, he has been the industry spokesman of the UN Task Force on Cybersecurity and Software Updates. He joined Groupe PSA in 2001 and has been working in the field of vehicle regulation and certification since 2005. In 2007, he became the spokesman of the International Organisation of Vehicle Manufacturers (OICA) inside the GRRF Expert Group for Brakes and Running Gear (Active Safety) of UNECE United Nations Economic Commission for Europe. He is currently the chairman of the OICA Technical Committee.